The Kalman filter (named after its inventor, Rudolf E Kalman[?]) is an efficient recursive computational solution of the least-squares method[?], which is applicable to distinguishing signals from noise so as to predict changes in a modeled system with time.
... 11.5% have a female householder with no husband present, and 16.6% are non-families. 13.2% of all households are made up of individuals and 4.4% have someone living ...